Could someone explain just what exactly the Server_SecureVNC.pkey does? I have the client auth keypair working fine but adding the server key doesn't seem to change anything. I get the different text in the DSM's config dialog but it doesn't seem to clearly explain exactly what's going on.

Also, is there some way to use the "extended length" password with the keypair? In case something happens to the keyfile on the server, I'd like the server protected by a more secure password than the VNC limited-length one.